usb_cdc.h
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上传日期:2009-04-28
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嵌入式Linux

开发平台:

Unix_Linux

  1. /*
  2.  * USB Communications Device Class (CDC) definitions
  3.  *
  4.  * CDC says how to talk to lots of different types of network adapters,
  5.  * notably ethernet adapters and various modems.  It's used mostly with
  6.  * firmware based USB peripherals.
  7.  */
  8. #define USB_CDC_SUBCLASS_ACM 0x02
  9. #define USB_CDC_SUBCLASS_ETHERNET 0x06
  10. #define USB_CDC_SUBCLASS_WHCM 0x08
  11. #define USB_CDC_SUBCLASS_DMM 0x09
  12. #define USB_CDC_SUBCLASS_MDLM 0x0a
  13. #define USB_CDC_SUBCLASS_OBEX 0x0b
  14. #define USB_CDC_PROTO_NONE 0
  15. #define USB_CDC_ACM_PROTO_AT_V25TER 1
  16. #define USB_CDC_ACM_PROTO_AT_PCCA101 2
  17. #define USB_CDC_ACM_PROTO_AT_PCCA101_WAKE 3
  18. #define USB_CDC_ACM_PROTO_AT_GSM 4
  19. #define USB_CDC_ACM_PROTO_AT_3G 5
  20. #define USB_CDC_ACM_PROTO_AT_CDMA 6
  21. #define USB_CDC_ACM_PROTO_VENDOR 0xff
  22. /*-------------------------------------------------------------------------*/
  23. /*
  24.  * Class-Specific descriptors ... there are a couple dozen of them
  25.  */
  26. #define USB_CDC_HEADER_TYPE 0x00 /* header_desc */
  27. #define USB_CDC_CALL_MANAGEMENT_TYPE 0x01 /* call_mgmt_descriptor */
  28. #define USB_CDC_ACM_TYPE 0x02 /* acm_descriptor */
  29. #define USB_CDC_UNION_TYPE 0x06 /* union_desc */
  30. #define USB_CDC_COUNTRY_TYPE 0x07
  31. #define USB_CDC_NETWORK_TERMINAL_TYPE 0x0a /* network_terminal_desc */
  32. #define USB_CDC_ETHERNET_TYPE 0x0f /* ether_desc */
  33. #define USB_CDC_WHCM_TYPE 0x11
  34. #define USB_CDC_MDLM_TYPE 0x12 /* mdlm_desc */
  35. #define USB_CDC_MDLM_DETAIL_TYPE 0x13 /* mdlm_detail_desc */
  36. #define USB_CDC_DMM_TYPE 0x14
  37. #define USB_CDC_OBEX_TYPE 0x15
  38. /* "Header Functional Descriptor" from CDC spec  5.2.3.1 */
  39. struct usb_cdc_header_desc {
  40. __u8 bLength;
  41. __u8 bDescriptorType;
  42. __u8 bDescriptorSubType;
  43. __le16 bcdCDC;
  44. } __attribute__ ((packed));
  45. /* "Call Management Descriptor" from CDC spec  5.2.3.2 */
  46. struct usb_cdc_call_mgmt_descriptor {
  47. __u8 bLength;
  48. __u8 bDescriptorType;
  49. __u8 bDescriptorSubType;
  50. __u8 bmCapabilities;
  51. #define USB_CDC_CALL_MGMT_CAP_CALL_MGMT 0x01
  52. #define USB_CDC_CALL_MGMT_CAP_DATA_INTF 0x02
  53. __u8 bDataInterface;
  54. } __attribute__ ((packed));
  55. /* "Abstract Control Management Descriptor" from CDC spec  5.2.3.3 */
  56. struct usb_cdc_acm_descriptor {
  57. __u8 bLength;
  58. __u8 bDescriptorType;
  59. __u8 bDescriptorSubType;
  60. __u8 bmCapabilities;
  61. } __attribute__ ((packed));
  62. /* "Union Functional Descriptor" from CDC spec 5.2.3.8 */
  63. struct usb_cdc_union_desc {
  64. __u8 bLength;
  65. __u8 bDescriptorType;
  66. __u8 bDescriptorSubType;
  67. __u8 bMasterInterface0;
  68. __u8 bSlaveInterface0;
  69. /* ... and there could be other slave interfaces */
  70. } __attribute__ ((packed));
  71. /* "Network Channel Terminal Functional Descriptor" from CDC spec 5.2.3.11 */
  72. struct usb_cdc_network_terminal_desc {
  73. __u8 bLength;
  74. __u8 bDescriptorType;
  75. __u8 bDescriptorSubType;
  76. __u8 bEntityId;
  77. __u8 iName;
  78. __u8 bChannelIndex;
  79. __u8 bPhysicalInterface;
  80. } __attribute__ ((packed));
  81. /* "Ethernet Networking Functional Descriptor" from CDC spec 5.2.3.16 */
  82. struct usb_cdc_ether_desc {
  83. __u8 bLength;
  84. __u8 bDescriptorType;
  85. __u8 bDescriptorSubType;
  86. __u8 iMACAddress;
  87. __le32 bmEthernetStatistics;
  88. __le16 wMaxSegmentSize;
  89. __le16 wNumberMCFilters;
  90. __u8 bNumberPowerFilters;
  91. } __attribute__ ((packed));
  92. /* "MDLM Functional Descriptor" from CDC WMC spec 6.7.2.3 */
  93. struct usb_cdc_mdlm_desc {
  94. __u8 bLength;
  95. __u8 bDescriptorType;
  96. __u8 bDescriptorSubType;
  97. __le16 bcdVersion;
  98. __u8 bGUID[16];
  99. } __attribute__ ((packed));
  100. /* "MDLM Detail Functional Descriptor" from CDC WMC spec 6.7.2.4 */
  101. struct usb_cdc_mdlm_detail_desc {
  102. __u8 bLength;
  103. __u8 bDescriptorType;
  104. __u8 bDescriptorSubType;
  105. /* type is associated with mdlm_desc.bGUID */
  106. __u8 bGuidDescriptorType;
  107. __u8 bDetailData[0];
  108. } __attribute__ ((packed));
  109. /*-------------------------------------------------------------------------*/
  110. /*
  111.  * Class-Specific Control Requests (6.2)
  112.  *
  113.  * section 3.6.2.1 table 4 has the ACM profile, for modems.
  114.  * section 3.8.2 table 10 has the ethernet profile.
  115.  *
  116.  * Microsoft's RNDIS stack for Ethernet is a vendor-specific CDC ACM variant,
  117.  * heavily dependent on the encapsulated (proprietary) command mechanism.
  118.  */
  119. #define USB_CDC_SEND_ENCAPSULATED_COMMAND 0x00
  120. #define USB_CDC_GET_ENCAPSULATED_RESPONSE 0x01
  121. #define USB_CDC_REQ_SET_LINE_CODING 0x20
  122. #define USB_CDC_REQ_GET_LINE_CODING 0x21
  123. #define USB_CDC_REQ_SET_CONTROL_LINE_STATE 0x22
  124. #define USB_CDC_REQ_SEND_BREAK 0x23
  125. #define USB_CDC_SET_ETHERNET_MULTICAST_FILTERS 0x40
  126. #define USB_CDC_SET_ETHERNET_PM_PATTERN_FILTER 0x41
  127. #define USB_CDC_GET_ETHERNET_PM_PATTERN_FILTER 0x42
  128. #define USB_CDC_SET_ETHERNET_PACKET_FILTER 0x43
  129. #define USB_CDC_GET_ETHERNET_STATISTIC 0x44
  130. /* Line Coding Structure from CDC spec 6.2.13 */
  131. struct usb_cdc_line_coding {
  132. __le32 dwDTERate;
  133. __u8 bCharFormat;
  134. #define USB_CDC_1_STOP_BITS 0
  135. #define USB_CDC_1_5_STOP_BITS 1
  136. #define USB_CDC_2_STOP_BITS 2
  137. __u8 bParityType;
  138. #define USB_CDC_NO_PARITY 0
  139. #define USB_CDC_ODD_PARITY 1
  140. #define USB_CDC_EVEN_PARITY 2
  141. #define USB_CDC_MARK_PARITY 3
  142. #define USB_CDC_SPACE_PARITY 4
  143. __u8 bDataBits;
  144. } __attribute__ ((packed));
  145. /* table 62; bits in multicast filter */
  146. #define USB_CDC_PACKET_TYPE_PROMISCUOUS (1 << 0)
  147. #define USB_CDC_PACKET_TYPE_ALL_MULTICAST (1 << 1) /* no filter */
  148. #define USB_CDC_PACKET_TYPE_DIRECTED (1 << 2)
  149. #define USB_CDC_PACKET_TYPE_BROADCAST (1 << 3)
  150. #define USB_CDC_PACKET_TYPE_MULTICAST (1 << 4) /* filtered */
  151. /*-------------------------------------------------------------------------*/
  152. /*
  153.  * Class-Specific Notifications (6.3) sent by interrupt transfers
  154.  *
  155.  * section 3.8.2 table 11 of the CDC spec lists Ethernet notifications
  156.  * section 3.6.2.1 table 5 specifies ACM notifications, accepted by RNDIS
  157.  * RNDIS also defines its own bit-incompatible notifications
  158.  */
  159. #define USB_CDC_NOTIFY_NETWORK_CONNECTION 0x00
  160. #define USB_CDC_NOTIFY_RESPONSE_AVAILABLE 0x01
  161. #define USB_CDC_NOTIFY_SERIAL_STATE 0x20
  162. #define USB_CDC_NOTIFY_SPEED_CHANGE 0x2a
  163. struct usb_cdc_notification {
  164. __u8 bmRequestType;
  165. __u8 bNotificationType;
  166. __le16 wValue;
  167. __le16 wIndex;
  168. __le16 wLength;
  169. } __attribute__ ((packed));